The British Herpetological Society

The Herpetological Bulletin is a quarterly publication in English. It includes full-length papers, natural history notes, book reviews, and other items of general herpetological interest. Emphasis is placed on natural history and conservation as well as captive care that includes breeding, husbandry, veterinary, and behavioural aspects.


pdf 04. Husbandry and first record of captive breeding of the Asian giant river toad Phrynoidis asper

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AUTHORS: ADAM W. BLAND, MATTHEW COOK, JAY REDBOND, ELLIE J. MCLAREN, SONNY WELSH, CHARLIE FRELON & MATTHEW SWATMAN

ABSTRACT: The Asian giant river toad Phrynoidis asper is a large species of bufonid from south-east Asia that is apparently obtained by the international exotic-pet trade from wild populations. Captive breeding of this species seems not to have been documented. The donation to Chester Zoo in October 2021 of an adult group of five males and one female of this toad species provided an opportunity to study captive breeding. The specimens were maintained separated by sex until signs of reproductive condition were apparent and then they were placed together in a large breeding enclosure. This had three distinct environmental zones simulating a riverbank. Six days after mixing the sexes a large spawn mass was laid. On hatching, the tadpoles were transferred to a rearing aquarium and then, after reaching Gosner stage 42, the developing toads were transferred to terrestrial vivaria to complete development. Captive breeding of this species could replace collection from the wild.

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